Walking Tomb Dreng vs Preserver

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Walking Tomb Dreng	Knight Revenant	Spirit	HP	Legendary	HP 30% Place: All battles
Preserver	Banner Lords	Force	Defence	Rare	HP 17% Place: All battles

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Walking Tomb Dreng	60	6	23130	870	1167	99	15	57	50	0
Preserver	60	6	16350 -6780	771 -99	1167	102 +3	15	50 -7	40 -10	0

Skills comparison

Walking Tomb Dreng	Corpsefire Formula: 0.11*HP Attacks 1 enemy 2 times. Instantly activates any [HP Burn] debuffs on the target after attacking.	Exalted Pyre Formula: 0.23*HP Attacks all enemies. Has a 75% chance of placing a [HP Burn] debuff on all enemies for 2 turns. This debuff cannot be resisted. Cooldown: 4 HP Burn	Death's Balance Formula: 0.35HP Formula: 0.35HP Equalizes the HP of all allies, then attacks 1 enemy. The HP levels of all allies will be brought up to the level of the ally with the highest HP. The attack will ignore 30% of the target's DEF if the target's current HP is equal to or lower than this Champion's current HP. Will decrease the cooldown of the Exalted Pyre skill by 1 turn if the target's current HP is higher than this Champion's current HP. Cooldown: 5	Fortress [P] Formula: 0.30DEALT_DMG Formula: 0.3DMG_MUL Reflects 30% of the damage this Champion receives back to the attacker if this Champion has 50% HP or more. Deals 30% more damage instead if this Champion has less than 50% HP.
Preserver	Exhausting Assault Formula: 5.5*ATK Attacks 1 enemy 2 times. Has a 15% chance of placing a 30% [Decrease SPD] debuff for 2 turns. Decrease SPD 30%	Recuperate Places a 7.5% [Continuous Heal] buff and a [Shield] buff on this Champion for 2 turns. The value of the [Shield] is proportional to this Champion's MAX HP. Cooldown: 4 Shield Continuous Heal 7.5%	Ice Blow Formula: 6.7*ATK Attacks 1 enemy. Has a 75% chance of placing a [Freeze] debuff for 1 turn. Cooldown: 5 Freeze	-